Author Archive

https://www.edn.com/electronics-blogs/si-pi-masterclass/4461028/Make-simple-fixtures-from-SMA-connectors For testing SMD components you need some test fixture. A fixed-geometry fixture produces consistent and repeatable results. This article tells how you can easily make fixed-geometry fixtures out of PCB-mounted SMA connectors. You can build a fixture to measure bypass capacitors using SMA-female edge-mount connectors. The narrow-base connectors (5 mm grid) and are best →

https://www.maximintegrated.com/en/app-notes/index.mvp/id/750 This article from MAXIM discusses the key relationship between video resolution and the required bandwidth to accurately process and display that video signal. The equations and table address standard definition, NTSC and PAL, as well as high definition DTV standards. Computer display formats are also covered. →

https://opensource.com/article/18/8/must-read-tech-newsletters Here’s an interesting looking list of 14 newsletters on open source software. →

This posting tells the story how I got a video made of my old computer demo from almost 25 years ago. The story of that computer demo told in Computer Demo: Bogus Party III Video by Bogus Device posting. That old program was designed to run on DOS operating system on a pretty old hardware. →

This posting is here to collect security alert news in September 2018. I post links to security vulnerability news to comments of this article.   →

https://spectrum.ieee.org/tech-talk/telecom/wireless/full-capabilities-of-5g-networks-in-autonomous-vehicles-explored How will 5G work with self-driving cars? A new 5G-enabled robot car in Finland offers some clues. VTT Technical Research Centre of Finland and mobile giant Nokia have joined forces to determine how 5G networks can transmit information to and from vehicles while on the road. They are testing the capabilities of 5G network →

https://techcrunch.com/2018/08/30/lego-built-a-life-size-drivable-bugatti-from-over-a-million-technic-pieces/ Unbelievable PR stunt: In what just might be the wildest thing anyone has ever built with Lego, the company behind the bricks has built a full-size, drivable model of the Bugatti Chiron supercar. Seriously. https://www.lego.com/en-us/themes/technic/bugatti-chiron/build-for-real With LEGO® Technic we like to state that you build for real. And to prove this is more than →

https://www.hackster.io/FoxyLab/arduino-nano-as-cp-m-compatible-computer-c09d4e?use_route=project cpm4nano – CP/M-compatible computer based on Arduino Nano. This looks interesting but maybe not very practical. I remember using and CP/M in early 1980s and even remember writing some code to it. →

https://opensource.com/article/18/8/top-10-raspberry-pi-blogs-follow There are plenty of great Raspberry Pi fan sites, tutorials, repositories, YouTube channels, and other resources on the web. This article lists 10 worth to check out Raspberry Pi blogs. →

This is a teardown of Behringer B208D active PA speaker. Inside Here is input pre-amplifier Look inside power electronics metal box Inside here is swich mode power supply (mains to around +-27V) and amplifier board. Amplifier board has 160W class D amplifier chip (below board and possibly broken) for driving low frequency speaker element, 40W →